Bag-tying machine.



P. E'. BEAM.

BAG TYING MACHINE.

APPLIOATIOH FILED APR. 11, 1913.

Patented Dec. 1, 1914.

UNITED STATES *PATENT ornrcn.

FRANK E. BEAM, or TOLEDO, 01110, lasers-non TO THE UNITED WIRE TIE COMPANY,

, or 'ronnnc, onto, a conrona'rxou.

BAG-TYING MACHINE.

T 0 all whom it may concern.-

. Be it known that I, FRANK E. BEAM, a a sleei'e 2.

;and exact description of the invention, such of the sort known as as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and t0 the figures of reference marked thereon, which form a part of this specification.

My invention relates to an implement for tying'shut with wire the mouths of bags valve-bags The open mouth of this kind of bag is tied shut before the bag is filled and the bag is new filled throu h a valve at the other end of the bag hen the bag is to, be emutied the mouth'is untied and opened.

lvl y invention is designed to furnish a Specification of Letters Patent.

Application filed April 11, 1913. Serial No. 760,447.

rod arranged to move longitudinally through 33 are hardened steel balls disposedpartly iii the. grooves of the rod 1 and partly ill lfi'diai recesses in the inner surface of the sleeve 2, the balls being thus held by radial set-screws 4. The balls thus engaged with the spiral groovesof the rod I serve as a nut, so that when the rod ismoved to and. fro longitudinally within the sleeve it is caused to revolve. secured between and within the adjacent ends of atubular casing 5 6 by means of The sleeve 2 is rigidly set-screws 7 passin through the ring-like,

portions 8 on housing 9. This housing is fiat at bottom and by means of holes 10 is adapted to be secured by screws or the like to of and near to the edge of a bench or table.

cheap, simple and highly efiicient device for machinery 9f this haracter: which may be rapidly and conveniently operated and" in which the puckering of the mouth of the bag and th rming f the preliminary looping of the wire as well as the twisting of the endsof the wire about each other, are all accomplished b" the simple act of pulling the bag away from the machine hi implement.v

To this end my invention consists of the devices, construction and arrangement of parts hereinafter described. and shown and illustrated in the accompanying drawing in which- 1 Figure 1 is a side-elevation of my device, partly in vertical, ongitudinal section; Fig. 2, a top plan-view of the same showing a straight tie-wire in place ready for the tying operation; Fig. 3, a top plan-view of the forward end of my device with the tie-wire looped about the puckered mouth of a bag; and Fig. 4, the samesh wing the puckering of the mouth of the bag completed and showing the ends of the tie-wire looped tightly about each other at the end of the tying operation.

Like numerals indicate like parts throughout thcdrawings.

Tn the drawings, 1 is a spirally grom'ml of the closed end of the casing 5. By means of these nuts the tension of the spring may be adjusted. The spring holds the screwrod l normally retracted. The forward-end of thecasing 6 is closed as at 15 and through this closure the front end of the rod 1 projects, the projecting portion being square or angular in transverse section, as shown at 16.

x 17l7 are two parallel, flat, resilient bars secured at their rear ends to opposite sides of the head 16, as at 18, andat their outer ends, being slightly spread apart, In the upper edges of the bars 17 neai -j their for ward ends are narrow, forwardlyjnclined slots 18 in alinement with each other and adapted to receive transversely a tie-wire 19 having at each end'a head or -an enlarged portion, as clearly illustrated in Fig. 2.

The operation of my device is as follows: The parts being assembled as above described and the housing 5.) being secured to the top of a bench or table of suitable height and near to its front edge, the two bars 17 are held retracted with the notches 13 uppermost. lhe operator slips the mouth of the bag to be tied cdgeu'isc between the two ars 17 with the upper edge of the bag projecting above the bars. The flaring ends of tho bars serve as a guide for and facilitate this introduction of the. bag. The bag is now suspended fiat and smooth from the bars 17 and back of the notches 18. The straight tie-wire 19 is now dropped into the slots 18 with the middle in alinement with the space between the bars 17. The operator now quickly pulls the bag horizontally out from between the bars 17, thus catching and looping the tie around the vertical edge of the bag as thbag emerges from between the bars, at the same time puckering the mouth oflthe bag 20 as illustrated in Fig. 3. The

horizontal pulling upon the bag by the operator is'continued (there being, in fact, but one single quick pull,) thus overcoming the resistance of the spring 12 and drawing the screw-rod 1 outwardly. This causes the screw-rod to revolve carrying with it.in its rotation the bars 17 and the ends of the looped wire 19, so that now the ends of the wire are tightly twined about each other and so that the mouth of the bag is still further closed and tightened. At its rear end, the screw-rod l is provided with a nut and washer 21 forming a stop which limits the outward movement of the screw-rod. At the forward side of this washer and surrounding the screw-rod is a compression spring 22 which relieves the shock of the blow of thestop 21 against the sleeve 2. Since the bars 17 are resilient their outer ends will, when pulled to their outer limit, come together or nearly so, as illustrated in Fig. 4, thus bringing the ends of the wire close together, lessening the resistance of. the. wire to the twisting operation and leaving the ends of the com leted tie in convenient form for untying. slight quick backward movement of the bag will release the ends of the wire from the slots 18, permitting the spring 12 to retract the screw-rod and the bars 17 to their original position, ready for an instant repetition of the operation hero described.

Having described my invention, what I claini' and desire to secure by Letters Patent, is,-

1. In a device of the described character, a spirally threaded rod, a stationary support which engages the threads of said rod and in which the rod may be reciprocated and revolved, a pair of bars carried by said rod and adapted to receive between them the mouth of a bag, said bars having near their outer ends recesses for the reception transversely of a. tie-Wire, and a spring which holds the rod normally retracted.

2. Ina device of the described character, a spirally grooved rod, a sleeve operatively engaged with the groove of said rod and in which'the rod revolves and reciprocates, devices which provide an opening for the reception and withdrawal flatwise of the mouth of the bag, means for supporting a tire-wire across the path of such movement of the bag, and means actuated by the withdrawal of such bag for looping the wire about the mouth of the bag and for actuating the rod to twist the ends of the wire about each other.

3. In a device of the described character,

a spirally threaded rod, a stationary support which engages the threads of said rod and in which the rod may be reciprocated and revolved, a pair of bars carried by said rod and adapted to receive between them the mouth of a bag, and means for supporting in engagement with and across the opening between said bars a tie-wire -the arrangement being such that a pull upon such bag withdraws it from between the bars, loops the wire about the-mouth of the bag, puckers the mouth of the bag, reciprocates and revolves the rod, and twists the ends of the tie about each other,-combined with means for retracting the rod.

4. In a device of the described character, a spirally threaded rod, a stationary support which engages the threads of said rod and in which the rod may be reciprocated and revolved, a pair of resilient bars carried by said rod and adapted to receive and hold between them flatwise the mouth of a bag, said bars being at their outer ends incli ned away from eachother and having in their upper edges corresponding forwardly inclined narrow slots adapted for the recep tion transversely of a straight tie-wire, and means for holdingthe threaded rod normally retracted.

In testimony whereof I afiix my signature in presence of two witnesses.

FRANK E. BEAM.

Witnesses:

GERTRUDE BRACKER, J. B. TEN BnooK. 

